jesse orr



(No Model.)

J. ORR. DOOR FOR STOVE OVENS.

No. 408.191. Patented July 30, 1889.

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ATENT OrrrcE.

JESSE ORR, OF READING, PENNSYLVANIA, ASSIGNOR TO ORR, PAINTER 8t (30.,OF SAME PLACE.

' DOOR FOR STOVE-OVENS.

SPECIFICATION forming part of Letters Patent No. 408,191, dated July 30,1889. Application filed September 21, 1888- Serial No. 285,976. (Nomodel.)

To all whom it may concern.-

Be it known that I, JESSE ORR, a citizen of the United States, residingat Reading, in the county of Berks and State of Pennsylvania, haveinvented certain new and useful Improvements in Doors for Stove-Ovens;and I do'declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same, reference being hadto the accompanying drawings, and to the letters of reference markedthereon, which form a part of this specification.

A limited number of cooking stoves and ranges have heretofore beenprovided with oven-doors designed to admit cold air into the oven, itbeing considered advantageous to the flavor of the article's beingcooked and a source of economy in reducing the loss in weight due to thecooking process; and ovens have also been constructed with a horizontalpartition adapted to cause air admitted at the bottom of the door tocirculate through the even before passing out at the top.Deflectorplates have also been placed in the front of air-openings inoven-doors.

The object of my invention is to furnish an oven-door in which thefunctions of the deflector-plate and of the horizontal partition will.be combined in a simple and economical construction, and, further, toadmit the fresh air, not at the bottom of the door, but higher up,compelling it to pass downward before entering the oven, being thusheated en route by contact with both the partition and deflector-plate.

Figure 1 is an outside view of an oven-door involving my invention, onecorner .being broken away to show the def] ector-plate more clearly. Theregisters are represented as open. Fig. 2 is avertical section throughon y of Fig. 1.

A represents the door, which is cast with a horizontal rib or partition13 and with openings O and D below and above said partition. A plate Eis secured by screw-bolts M to the latter, and is thus held at somedistance from the main-door plate A, leaving a chamber above and belowsaid partition communicating with the respective openings D and C.

The plate E may be brought close to the side walls of the door, butspaces N and ]P are left between the plate and the top and bottom walls,so that when the door is closed against the side plate K of the stovethere will be a communicating passage-way from the lower openings 0 intothe lower part of the oven and from the upper part of the same to theupper outlets D,the natural course of the air being to pass in at thebottom and out at the top.

H and L represent, respectively, the oventop and oven-bottom.

F and G are independent slides adapted" to regulate the size of theopenings D and O,

forming top and bottom registers for the withdrawal and admission of airfrom and to the oven.

The cold air admitted at G strikes against the deflector-plate E, whichimparts a portion of its heat to it as it is carried around it andpasses into the even through the space P. The hot air at the top of theoven is at the same time drawn out through the upper space N andopenings D, the amount of circulation being under complete control bymeans of the top and bottom registers, and no matter how much fresh airis admitted its temperature is considerably raised before it reaches theoven.

Having thus described my invention, what I claim is An ovendoorconstructed with upper and lower chambers separated by a horizontalsolid partition, substantially as described, the

lower chamber having air-inlet openings (1 in its outer wall immediatelybelow said partition, and the upper chamber having similaroutlet-openings D, the inner Wall of said chambers being formed by asolid Vertical de- Hector-plate E,arranged to leave top and bot- JESSEORR.

Witnesses:

W. G. STEWART, E1). F. FREEHOFER.

